EG85E (ESTERG85E) is the glycerol ester of refined gum rosin, sometimes referred to as “ester gum”. It is a pale-colored thermoplastic resin that has low odor and low acid number. It is used as emulsification stabilizer for drinks and as an ingredient of chewing gum & bubble gum. Industrial applications include resin component in various adhesives, inks, coatings, and personal care compositions.
Ester Gum
(Glycerol Ester of Gum Rosin)
EG85E (ESTERG85E), also known as “ester gum,” is the glycerol ester of refined gum rosin. This pale-colored thermoplastic resin possesses a low odor and a low acid number. It is commonly used as an emulsification stabilizer in beverages and as an ingredient in chewing gum and bubble gum. Additionally, it has various industrial applications, serving as a resin component in adhesives, inks, coatings, and personal care products.

Applications
- Emulsification stabilizer for drinks, and as an ingredient of chewing gum
- Adhesives and sealants: pressure sensitive, hot melt, solvent, and emulsion
- Tapes and labels
- Inks, coatings, lacquers
- Rubber and plastics modification
- Cosmetics, depilatory waxes
- Tackifier in construction mastics
Description
Glycerol Ester of Gum Rosin ESTERG85 is a slightly yellow, transparent solid derived from gum rosin or refined gum rosin through glycerol esterification. It serves well as a tackifying resin.
Storage and Handling
Store inside or under a roof in the original packaging. Keep dry and avoid exposure to freezing temperatures and excessive heat. Heat and pressure from stacking pallets may cause the pastilles to bind and form larger lumps.
Properties | Specifications | Typical |
Color, Gardner, maximum | 8 | 6 |
Acid Value, mg KOH/g, maximum | 10 | 9 |
Softening Point, Ring & Ball, °C minimum | 80-90 | 85 |
Density @25°C, kg/l | 1.060 ~ 1.090 | 1.08 |
Heavy metals (as Pb), Max. | 10 ppm | < 10 ppm |
Total Arsenic (as As), Max. | 1.0 ppm | < 1.0 ppm |
Ash Content, (g/100g), Max. | 0.1 | 0.1 |
Distributed in the U.S.A. by:
Rosin Factory(Division of Chemical Store Inc.)
1059 Main Avenue, Clifton, NJ 07011 • U.S.A.
Tel: (973) 405-6249
E-Mail: rosinfactory@chemicalstore.com